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6. LOADING AND INSTALLATION
6.6 Installation Environment
CAUTION
6.7 Precautions for Connecting to Uninterruptible Power Supply (UPS)
Use the PLC in an environment which conforms to the general specifications
given in the manual. Not doing so can cause an electric shock, fire,
misoperation or product damage or deterioration can occur.
When installing the A1FXCPU system, avoid:
(1) Ambient temperature outside the range 0 to 55
(2) Ambient humidity outside the following range:
10 to 90%RH when the A1FXCPU is used independently; or
35 to 85%RH when the A1FXCPU is used with the FX series
(3) Condensation due to sudden temperature changes
(4) Corrosive or combustible gasses
(5) Dust, conductive powder (e.g. metal filings), oil mist, salt and organic solvent
(6) Direct sunlight
(7) Strong power and magnetic fields
(8) Vibration and impact
When connecting to an uninterruptible power supply (abbreviated as UPS here after),
pay attention to the followings.
Always use the on-line UPS system which voltage distortion is 5% or less.
Do not use the off-line UPS system.
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MELSEC-A
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